[Feature]: promote failOnFlakyTests config to the FullConfig for reporters

[twk3]

🚀 Feature Request

Move failOnFlakyTests from the internal config to the public config so reporters that take over stdout can reason about why the run failed in the output.

Similar to maxFailures.

Example

Similar to maxFailures, reporters that print to stdout should be able to reason about why a run failed in their onEnd.

Here is an example printer snippet that uses maxFailures:

    const stoppedEarly = [];
    if (
      this.pwConfig.maxFailures &&
      failedTests.length >= this.pwConfig.maxFailures
    ) {
      stoppedEarly.push(
        logger.yellow(
          `${ident(baseIdent)}Testing stopped early after ${
            this.pwConfig.maxFailures
          } maximum allowed failures`
        )
      );
    }

Something similar should be possible for failOnFlakyTests

Motivation

Improve reporter output abilities